How to make CNC work in OpenCart, which is not in the root of the domain?

Question

PHP

Circumstances: The customer has a corporate website - raised on WordPress. He (the customer) wanted to have an online store on the same domain. For these purposes, OpenCart was chosen, which was placed in a subdirectory of the site. The customer categorically refused the subdomain, citing the presence of a good rating in search engines on the current site. As a result, there is no need to re-promote the site.
Problem: The OpenCart CNC refuses to work if the site is not in the root of the domain.
Question: How to make CNC work in OpenCart, which is not in the root of the domain?
Already tried: picking config,php, system/startup.php, system/library/url.php .
I'm a seasoned guy, you can not chew much - just tell me where to dig.

Answer 1

In .htaccess RewriteBase / change to RewriteBase /folder_name/
may help